Table 2. Anisotropy in thermal conductivity for selected materials with layered, wurtzite, and orthorhombic crystal structure at a temperature of 300 K. ‘exp' and ‘pred' in the first column denote experimental measurements and simulation predictions.

Material	kmax (W/m-K)	kmin (W/m-K)	r
Graphite (exp33)	(1000–2000)	6	~300
h-BN (exp33)	(200–300)	2	~100
Black Phosphorene	110	36	3.1
SnSe (exp34)	0.70	0.46	1.52
GaN (pred14)	401	385	1.04
AlN (pred14)	322	303	1.06
NdFeO3 (pred35)	3.01	2.68	1.12
NdAlO3 (pred35)	6.61	5.72	1.16